Assignee
CHEMPRENE
US·3 granted patents·1 pending application·61 citations·filing 1976–2006
Top patents by PatentIndex Score
4 records- 0173US4206930ACircumferentially compressed piston ring assembly and methodCHEMPRENE·Filed 1977·Granted Jun 10, 1980·34 cites·13 claims
- 0256US4109924AStepped joint piston ringCHEMPRENE·Filed 1976·Granted Aug 29, 1978·18 cites·8 claims
- 0340US2007181561A1Bottle heaterCHEMPRENE·Filed 2006·Application pending·0 cites
- 0436US4161320AResilient packingCHEMPRENE·Filed 1977·Granted Jul 17, 1979·9 cites·5 claims
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